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7.
<ul><li>Why do believe sonar should or should not be used? </li></ul><ul><li>What effect does it might have that aren’t marine animals? </li></ul><ul><li>What ways can sonar be used positively? </li></ul>

8.
<ul><li>Sonar </li></ul><ul><ul><li>SOund Navigation And Ranging </li></ul></ul><ul><ul><li>Should be used sparingly </li></ul></ul><ul><ul><li>Vital to navy </li></ul></ul><ul><ul><li>Harmful to marine life </li></ul></ul>